Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH v3]PM/Sleep: Timer quiesce in freeze state | Date | Mon, 26 Jan 2015 15:50:21 +0100 |
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On Monday, January 26, 2015 03:24:27 PM Thomas Gleixner wrote: > On Mon, 26 Jan 2015, Rafael J. Wysocki wrote: > > On Monday, January 26, 2015 10:40:24 AM Thomas Gleixner wrote: > > > The only remaining issue might be a NMI calling into > > > ktime_get_mono_fast_ns() before timekeeping is resumed. Its probably a > > > non issue on x86/tsc, but it might be a problem on other platforms > > > which turn off devices, clocks, It's not rocket science to prevent > > > that. > > > > I don't see any users of ktime_get_mono_fast_ns() at all, unless some non-trivial > > macros are involved. At least grepping for it only returns the definition, > > declarations and the line in trace.c. > > You can trace in NMI and perf is going to use ktime_get_mono_fast_ns() > eventually as well.
So I'm not sure how to intercept that to be honest. Any hints?
Rafael
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